Design, construction and testing of a parabolic solar steam. Jan 23, 2010 the pcu solar receiver is an external heat exchanger that absorbs the incoming solar thermal energy. This file contains additional information such as exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. Parabolic trough collector cost update for the system advisor model sam parthiv kurup and craig s. Parabolic trough solar collector pdf basically a manual method to make high efficiency solar collectors against very low cost, which is. Pdf in mexico, a local enterprise has developed a parabolic trough solar collector. For this reason, the latter is usually made as black as possible so that it will have a high absorption capacity. Solar cooling technologies demand high temperatures and not all the type of solar collectors are capable of producing them. Parametric methodology to optimize the sizing of solar collector.
Sensitive analysis for the efficiency of a parabolic trough. In concentrating solar power technology, the optical efficiency of solar collector influences collector performance significantly. Solar collector is a mechanical device which captures the radiant solar energy and converts it to useful thermal energy 4. Beside the simple lowtemperature receiver described in this article that can be used for water heater, space heater or heat source for an absorption cooler, there are. As part of the european solabs project, steelbased solar collectors have been developed for application as facade elements in steel construction.
The solar parabolic dish collector is fabricated using an unused satellite dish antenna fitted with polished aluminum sheet as. Method of a given focus and directrix was employed in the construction of the. Background solar thermal water heating or solar hot water shw has a long history of use throughout the world, but has had varying penetration in the u. Designing a ptc for a specific working condition requires determination of several parameters and referring to a number of design standards and handbooks. Thus, a heat transfer analysis and modeling of a parabolic trough solar collector are presented in this paper. Experimental study on solar parabolic dish thermoelectric. Abstract this paper presents the design of a parabolictrough solar collector system for water desalination in gaza, collector aperture and rimangle optimization together with the receiverdiameter selection are presented. The use of parabolic trough collectors can be found in different countries that promote. The solar dish stirling technology is well beyond the research and development phase, with more than 20 years of recorded operating history. Abstract this paper presents the design of a parabolictrough solarcollector system for water desalination in gaza, collectoraperture and rimangle optimization together with the receiverdiameter selection are presented. Large scale concentrators today use automated tracking systems that can. High performance flat plate solar thermal collector evaluation. To best capture this energy the solar collector should be tilted as shown in figure.
Energy equations for computation of parabolictrough. How do solar parabolic dishes work solar power world. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. A parabolic trough solar collector uses a mirror in the shape of a parabolic cylinder to reflect and concentrate sun radiations towards a receiver tube located at the. Optical design of a solar parabolic concentrating collector based on trapezoidal reflective petals 715 is carried out to improve the overall performance of system. Optical design of a solar parabolic concentrating collector. The maximum power of 34 mw e is generated with maximum temperature of 375. Performance analysis of parabolic solar dish collector for. The solar collector described here has several usages, and changing the usage amounts simply to replacing the receiver tube. This collector has modular characteristics and it has been installed in some industries around the country to meet the thermal load for their processes or diminish the consumption of fossil fuels.
Abstractthe parabolic dish solar collector technology is very useful as it is used for approximately all solar energy applications such as steam and power generation, water heating, air heating etc. Reddy and harinarayana16 have est imated the solar thermal energy potential in indiawith1. The compound parabolic collector cpc is a widely used technology in. Solar collectors transform solar radiation into heat and transfer that heat to a medium water, solar fluid, or air. Parabolic trough solar thermal system parabolic trough. Each solar collector has a linear parabolicshaped reflector that focuses the suns direct beam radiation. Heat transfer analysis and modeling of a parabolic trough. Solar power can be transmitted through grid either from solar photovoltaic or solar thermal technology. The sunlight which enters the mirror parallel to its plane of symmetry is focused along the focal line, where objects are. Code for thermal analysis of parabolic collectors are used. Design parameter selection for a distillation system. Concentrating solar power technology is introduced during 18s.
Absorption of solar radiation is what solar heat collector is all about. Pdf analysis of solar water heater with parabolic dish. The use of solar energy for heat production dates from antiquity. Solar radiation energy to internal energy of transport medium. Modeling of a parabolic solarcollector system for water desalination. Even though solar collectors can collect heat from the diffuse component of solar radiation, solar systems are designed to use the direct component. Parabolic trough1 is optimal dynamic trading strategies with risk limits pdf the ownload free pdf file reader most mature technology for large scale exploitation of solar. A wide variety of parabolic solar collector options are available to you, such as pressurized, evacuated tube, and nonpressure. Design and development of an educational solar tracking. The target of the national solar mission is to build up india as a worldwide pioneer in solar energy generation. A copy of the license is included in the section entitled gnu free documentation license. System performance was investigated experimentally and. However, it is limited to a single or double factors for available system.
Pdf an overview on parabolic trough solar collector. The sunlight which enters the mirror parallel to its plane of symmetry is focused along the focal line, where objects are positioned that are intended to be heated. The solar field is modular in nature and is composed of many parallel rows of solar collectors aligned on a northsouth horizontal axis. Introduction solar thermal solar photovoltaic in cold climate large amount of low grade thermal energy is used. In order to boil water with solar energy, we propose to design and conceive a. A parabolic trough solar collector uses a mirror in the shape of a parabolic cylinder to reflect and concentrate sun radiations towards a receiver tube located at the focus line of the parabolic cylinder. Solar tracking for a parabolic dish used in a solar thermal brayton cycle w. Method of a given focus and directrix was employed in the construction of the parabolic dish. Numerical modelling of a parabolic trough solar collector. The collector field consists of a large field of singleaxis tracking parabolic trough solar collectors.
Solar tracking for a parabolic dish used in a solar. Solar collectors are one way of focussing the suns rays to heat up fluids. Our contribution to sustainable development for humanity and the environment is a swedish solar energy system with unique versatility and installations the world over. Then solar heat can be used for heating water, to heating or cooling systems, or for heating swimming pools. Simplified methodology for designing parabolic trough. Qcoll is the energy collected per unit collector area per unit time fr is the collectors heat removal factor. Design and development of an educational solar tracking parabolic trough collector system. Design of a parabolic trough solar collector using a. A detailed solar power plant simulation and analysis of its components is needed for the design of parabolic trough solar systems.
Energy equations for the computation of parabolictrough collector efficiency using. Sensitive analysis for the efficiency of a parabolic. Design parameter selection for a distillation system coupled. This reduces efficiency, but makes it cheaper to build and operate. Evacuated tube collectors qcoll is the energy collected per unit collector area per unit time fr is the collector s heat removal factor. Permission is granted to copy, distribute andor modify this document under the terms of the gnu free documentation license, version 1. Parabolic trough power plants use parabolic trough collectors to concentrate the direct solar radiation onto a tubular receiver. Manual making of a parabolic solar collector internet archive. They are basically unusually shaped mirrors parabolic in shape that focus the heat of the sun on a pipe carrying a special fluid. The compound parabolic collector cpc is a widely used. Large collector fields supply the thermal energy, which is used to drive a steam turbine, which, on its part, drives the electric generator.
The parabolic trough collector ptc is the most common type of hightemperature solar thermal technology, in which the heat transfer fluid is usually synthetic oil, molten salt or watersteam. Solar collection type of solar collectors, photovoltaic. Modeling of a parabolic solar collector system for water desalination. A solar bowl is a type of solar thermal collector that operates similarly to a parabolic dish, but instead of using a tracking parabolic mirror with a fixed receiver, it has a fixed spherical mirror with a tracking receiver. Without tracking the collector becomes almost useless except for a very short time period once a day. A parabolic trough is a type of solar thermal collector that is straight in one dimension and curved as a parabola in the other two, lined with a polished metal mirror.
Design, construction, and test of a miniature parabolic. In this paper, an attempt has been made to conduct an experimental study on small scale solar parabolic dish thermoelectric generator. Experimental and numerical analysis of thermal losses of a. Large scale concentrators today use automated tracking systems that can track the sun on a biaxial path powell, 89. Pdf study of applications of parabolic trough solar collector.
A typical array of solar collectors is seen opposite. This is the concave dish made of wood and lined with an aluminium sheet. In this paper, two different reflective surfaces are used to increase the optical efficiency of a parabolic trough solar collector. Parabolic trough collector ptc is special kind of heat exchanger that is able to transfer solar radiation energy to fluid medium that flow through it. Design, construction and testing of a parabolic solar steam generator joshua folaranmi 120 parabolic dish. A concentrating collector further focuses the solar energy on the receiver resulting in higher thermal efficiency. This article offers an illustrated description of a method to produce a closed parabolic trough solar energy collector box based on the elasticity of the material. Parabolic solar collector ayush khare 1, sachin saxena, c h tyagi1 and sanjeev kumar1 corresponding author. Design and implementation of a parabolic cylinder collector with.
Auguste mouchout is the first person that use the parabolic trough technique to produce steam for steam engine in 1866. Parabolic trough collector cost update for the system advisor. A parabolic solar collector device that would heat a halfliter of water to boiling within two hours is of significant importance to reduce the volume of green house gases emitted by each household, globally reducing the impact of fossil fuels on our planet. Solar collector, pcc, solar tracking, solar panel, hot water. Meyer department of mechanical and aeronautical engineering, university of pretoria abstract solar thermal brayton cycles utilise concentrated sun rays and can be used to power microturbine generators. In mexico, a local enterprise has developed a parabolic trough solar collector to produce thermal energy. A parabolic trough solar collector uses a mirror in the shape of a parabolic cylinder to reflect. In this paper work the performance analysis of parabolic solar dish collector is done with the use of different reflecting materials. If the design is successful, the parabolic solar collector device can be marketed to the millions of household owners. A multitude of the researches focus on the factors of the thermal efficiency of a parabolic trough solar collector, that is, the opticalthermal efficiency. Study of applications of parabolic trough solar collector. Solar concentrators provide increased energy efficiency and produce electricity, heat and steam in the same system.
Solar tracking is also necessary for efficient use of concentrating collectors. Parabolic trough solar water heating is one of several well proven solar. This paper presents the development of a solar parabolic dish collector prototype for rural areas with high. Parabolictrough solar concentrators will be considered in. Solar collector is a device which absorbs the incoming solar radiation, converts it into heat, and transfer this heat to a fluid usually air, water flowing through the collector. Manual making of a parabolic solar collector gang xiao laboratoire j. Manual making of a parabolic solar collector by gang xiao. The aim of this paper is to investigate the multifactors effect on the systems efficiency in cold climate region. The first patent for solar collector is invented by mr. Design and construction of a solar collector parabolic dish. The equipment is well characterized with over 50,000 hours of onsun time. A prototype of a small modularity parabolic dish reflector or pdr solar collector. Design support system for parabolic trough solar collector.
Easiest way to make a parabolic solar collector is bamboo basket. Direct radiation is in the form of parallel rays coming straight from the sun. Its uses do not contribute to emission of greenhouse gases and other pollutants to the environment. Himin is parabolic trough solar thermal system manufacturer in china, our rough solar thermal power generation system is now the most proven largescale power system with the lowest cost. Parabolic trough collector cost update for the system. A generator is connected to the solar stirling engine. This heats and pressurizes the gas in the heat exchanger tubing, and this gas in turn powers the solar stirling engine. Design, construction and testing of a parabolic solar.
Since 1984, the solar dish stirling equipment has held the worlds efficiency record. Different types of solar collectors are studied, as well as the solar resources in the. Solar collector is a device which absorbs the transport medium. Modelling of solar thermal power plant using parabolic. Solar water heaters, such as the ap evacuated tube solar collectors by apricus that use evacuated tube technology, are able to reach a complete solar collector efficiency not just the absorber of nearly 70% based on aperture dimensions, and over 80% if you just consider the surface area of the black absorber. Modelling of solar thermal power plant using parabolic trough. What is described here is basically a manual method to make high efficiency solar collectors against very low cost, which is particularly suited for teaching, research or.
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